Linear light guiding module

Abstract

A linear light guiding module is provided, which includes a linear light guiding body, a plurality of light emitting bodies, a plurality of heat sinks, and a plurality of fans. With the linear light guiding body, the light emitting bodies, and the heat sinks linearly arranged, or with the fans further integrated, the linear light guiding module of the present invention has a small size and an effective heat-dissipation effect. Since only one linear light guiding module needs to be disposed on one side of a light guide plate, the linear light guiding module can be used in large-sized liquid crystal display panels. Moreover, the number of the linear light guiding modules used is decreased while the requirements for high brightness and brightness uniformity can still be met, so the cost can be reduced.

What is claimed is: 
     
       1. A linear light guiding module, comprising:
 a linear light guiding body; 
 a LCD panel, wherein the LCD panel having four sides; 
 a plurality of light emitting bodies, disposed at two opposite ends of the linear light guiding body, so that light rays generated by the light emitting bodies are guided into the linear light guiding body, the linear light guiding module is disposed on one of the fours sides of the LCD panel and a light guide plate (LGP); and 
 a plurality of heat sinks, wherein a side surface of each heat sink is connected to one of the light emitting bodies, 
 wherein the plurality of light emitting bodies are not disposed along an entire length of any of the four sides the LCD. 
 
     
     
       2. The linear light guiding module according to  claim 1 , wherein the light emitting bodies are light emitting diodes (LEDs) or cold-cathode tubes. 
     
     
       3. The linear light guiding module according to  claim 1 , wherein the linear light guiding module is disposed on at least one side of a light guide plate (LGP). 
     
     
       4. The linear light guiding module according to  claim 1 , wherein the heat sinks are made of copper or a copper alloy. 
     
     
       5. The linear light guiding module according to  claim 1 , wherein the heat sinks are made of aluminum or an aluminum alloy. 
     
     
       6. The linear light guiding module according to  claim 1 , wherein the sizes of the heat sinks are set according to power of the light emitting bodies. 
     
     
       7. The linear light guiding module according to  claim 1 , further comprising: a heat dissipation medium, disposed between each light emitting body and a corresponding heat sink. 
     
     
       8. The linear light guiding module according to  claim 7 , wherein the heat dissipation medium is a heat sink paste. 
     
     
       9. The linear light guiding module according to  claim 7 , wherein the heat dissipation medium is a thermal pad. 
     
     
       10. A linear light guiding module, comprising:
 a linear light guiding body; 
 a LCD panel, wherein the LCD panel having four sides; 
 a plurality of light emitting bodies, disposed at two opposite ends of the linear light guiding body, so that light rays generated by the light emitting bodies are guided into the linear light guiding body, the linear light guiding module is disposed on one of the fours sides of the LCD panel and a light guide plate (LGP); 
 a plurality of heat sinks, wherein a side surface of each heat sink is connected to one of the light emitting bodies; and 
 a plurality of fans, each connected to at least one of the other side surfaces of a heat sink, 
 wherein the plurality of light emitting bodies are not disposed along an entire length of any of the four sides the LCD. 
 
     
     
       11. The linear light guiding module according to  claim 10 , wherein the light emitting bodies are light emitting diodes or cold-cathode tubes. 
     
     
       12. The linear light guiding module according to  claim 10 , wherein the linear light guiding module is disposed on at least one side of a light guide plate. 
     
     
       13. The linear light guiding module according to  claim 10 , wherein the heat sinks are made of copper or a copper alloy. 
     
     
       14. The linear light guiding module according to  claim 10 , wherein the heat sinks are made of aluminum or an aluminum alloy. 
     
     
       15. The linear light guiding module according to  claim 10 , wherein the fans are coupled to the heat sinks by screws. 
     
     
       16. The linear light guiding module according to  claim 10 , wherein the fans are coupled to the heat sinks by pins. 
     
     
       17. The linear light guiding module according to  claim 10 , wherein the sizes of the heat sinks and the fans are set according to power of the light emitting bodies. 
     
     
       18. The linear light guiding module according to  claim 17 , wherein the thickness of the heat sinks is less than 20 mm, and the thickness of the fans is less than 15 mm. 
     
     
       19. The linear light guiding module according to  claim 10 , further comprising: a heat dissipation medium, disposed between each light emitting body and a corresponding heat sink. 
     
     
       20. The linear light guiding module according to  claim 19 , wherein the heat dissipation medium is a heat sink paste. 
     
     
       21. The linear light guiding module according to  claim 19 , wherein the heat dissipation medium is a thermal pad.